CN107458896B - Sheet feeding device and image forming apparatus - Google Patents
Sheet feeding device and image forming apparatus Download PDFInfo
- Publication number
- CN107458896B CN107458896B CN201710406373.2A CN201710406373A CN107458896B CN 107458896 B CN107458896 B CN 107458896B CN 201710406373 A CN201710406373 A CN 201710406373A CN 107458896 B CN107458896 B CN 107458896B
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- China
- Prior art keywords
- sheet feeding
- slipper
- back edge
- sheet
- feeding device
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
- B65H1/266—Support fully or partially removable from the handling machine, e.g. cassette, drawer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/50—Machine elements
- B65H2402/51—Joints, e.g. riveted or magnetic joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/111—Bottom
- B65H2405/1116—Bottom with means for changing geometry
- B65H2405/11164—Rear portion extensible in parallel to transport direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/112—Rear, i.e. portion opposite to the feeding / delivering side
- B65H2405/1124—Rear, i.e. portion opposite to the feeding / delivering side pivotable, details therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/30—Other features of supports for sheets
- B65H2405/32—Supports for sheets partially insertable - extractable, e.g. upon sliding movement, drawer
- B65H2405/324—Supports for sheets partially insertable - extractable, e.g. upon sliding movement, drawer between operative position and non operative position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
- B65H2407/20—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes for manual intervention of operator
- B65H2407/21—Manual feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/11—Length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
Abstract
The present invention relates to a kind of sheet feeding devices, comprising: main part, the main part have the support section for being configured to support sheet；Pivoting portions, the pivoting portions are arranged in the upstream of support section along sheet feeding direction and are pivotally supported between first position and the second position relative to main part, and pivoting portions are configured in first position the support sheet together with support section；Slipper, the slipper are slidably supported on pivoting portions；Control slipper is configured to along the first control part of the downward downstream in sheet feeding direction；It is configured to the second control part of the position for the sheet material that control is supported on support section；And the leader formed across support section and slipper, the leader are configured to guide the second control part between support section and slipper along sheet feeding direction.The invention further relates to a kind of image forming apparatuses including the sheet feeding device.
Description
Technical field
The present invention relates to a kind of sheet feeding devices for being configured to feeding sheet material and one kind configured with sheet feeding device
Image forming apparatus.
Background technique
Up to the present, such as the image forming apparatus of duplicator and facsimile machine is usually provided with and is arranged in image and forms dress
The box at lower part set can extract box out from image forming apparatus, and the sheet material fed by feed roller is stored in box.
The side edge position of the sheet material in box is stored in by side edge control component control, the back edge position of sheet material is by back edge control
Component control.Side edge control component and back edge control component are respectively in a manner of corresponding to sheets of sizes and by movably
Support.
So far, Japanese Unexamined Patent Application Publication No.2004-264840 have been proposed it is a kind of configured with sheet material to
Send the image forming apparatus of lid, sheet feeding lid can relatively thereon the sheet feeding unit of support sheet and beat on and off
It closes, with the size in order to reduce image forming apparatus, and sheet material can be placed on sheet feeding and cover in an open state.
According to image forming apparatus disclosed in above-mentioned Japanese Unexamined Patent Application Publication No.2004-264840, state
Sheet feeding is movably disposed to be configured to the back edge control component of the back edge position of control sheet material to cover.User is first
Sheet material is first placed on sheet feeding unit in an open state and sheet feeding covers.Then, relative to sheet feeding unit
Side edge control component is moved with the side edge position of control sheet material, and relative to the mobile back edge control portion of sheet feeding lid
Part is with the back edge position of control sheet material.Image forming apparatus steadily feeds sheet material as a result, the skew without causing sheet material
It feeds or blocks.
However, in the state of stacking small size sheet material (for example, postcard sized sheets), the back edge of sheet material can
Not the position of the sheet feeding side of covering.In this case, back edge control component will not control sheet material back edge position,
The feeding of sheet material becomes unstable, to be prone to the skew feeding of sheet material or block.
Summary of the invention
According to an aspect of the present invention, sheet feeding device includes: main part, and the main part includes being configured to
The support section of support sheet and the feeding part for being configured to the sheet material that feeding is supported on support section；Pivoting portions, institute
Pivoting portions are stated to set up the upstream in support section in sheet feeding side and be pivotally supported relative to main part
Between the first position and the second position, pivoting portions are configured in first position the support sheet together with support section；It is sliding
Dynamic part, the slipper are slidably supported on pivoting portions；First control part, first control part construction
At against slipper and control slipper is along the downward downstream in sheet feeding direction；Second control part, described
Two control parts are configured to the position for the sheet material that control is supported on support section；And cross over support section and slipper shape
At leader, the leader is configured to guide between support section and slipper along sheet feeding direction
Two control parts.
It with reference to attached drawing, is described below according to exemplary embodiment, other feature of the invention will become obvious.
Detailed description of the invention
Fig. 1 is to show the perspective view of printer according to first embodiment.
Fig. 2 is to show the perspective view of sheet feeding device.
Fig. 3 A is to show the perspective view of sheet feeding pallet.
Fig. 3 B is to show the enlarged view in the hole being formed on leader.
Fig. 4 A is to show the birds-eye perspective of slide unit.
Fig. 4 B is to show the face upwarding view of slide unit.
Fig. 5 A is to show the front perspective view of back edge control component.
Fig. 5 B is to show the rear perspective of back edge control component.
Fig. 6 A is to show the perspective view for the back edge control component being positioned in first position.
Fig. 6 B is to show the perspective view for the back edge control component being positioned in the second position.
Fig. 6 C is to show the perspective view for the back edge control component being positioned in the third place.
Fig. 6 D is to show the perspective view for the back edge control component being positioned in the 4th position.
Fig. 7 A is to show the perspective view for the back edge control component being positioned in first position.
Fig. 7 B is the cross section view of section A7-A7, shows the back edge control component being positioned in first position.
Fig. 7 C is the cross section view of section B7-B7, shows the back edge control component being positioned in first position.
Fig. 8 A is to show the claw portion of slide unit against the perspective view of the state of the flank of sheet feeding pallet.
Fig. 8 B is to show the claw portion of slide unit against the plan view of the state of the flank of sheet feeding pallet.
Fig. 8 C is the cross section view of section A8-A8, shows rib of the claw portion against sheet feeding pallet of slide unit
The state in portion.
Fig. 9 A is to show the inclined surface of back edge control component against the perspective of the state of the claw portion of slide unit
Figure.
Fig. 9 B is to show the inclined surface of back edge control component against the plane of the state of the claw portion of slide unit
View.
Fig. 9 C is to obtain from the inclined surface of back edge control component against the front side of the state of the claw portion of slide unit
Perspective view.
Figure 10 A is to show the perspective view of state of the back edge control positioning parts in the second position.
Figure 10 B is to show the plan view of state of the back edge control positioning parts in the second position.
Figure 10 C is the perspective view that the front side of the state from back edge control positioning parts in the second position obtains.
Figure 11 A is to show the state of the leading edge in the hole of the claw portion of back edge control component on slide unit
Perspective view.
Figure 11 B is to show the state of the leading edge in the hole of the claw portion of back edge control component on slide unit
Plan view.
Figure 11 C is the cross section view of section A11-A11, shows the claw portion of back edge control component against slide unit
On hole leading edge state.
Figure 12 A is to show the perspective view of state of the back edge control positioning parts in the third place.
Figure 12 B is the perspective view that the upside of the state from back edge control positioning parts in the third place obtains.
Figure 12 C is the cross section view of section A12-A12, shows shape of the back edge control positioning parts in the third place
State.
Figure 13 A is to show the perspective view of state of the back edge control positioning parts in the 4th position.
Figure 13 B is the cross section view of section A13-A13, shows shape of the back edge control positioning parts in the 4th position
State.
Figure 14 A is that the engagement between the flank shown on the claw portion and sheet feeding pallet of slide unit is released
The perspective view of state.
Figure 14 B is that the engagement between the flank shown on the claw portion and sheet feeding pallet of slide unit is released
The plan view of state.
Figure 14 C is that the engagement between the flank shown on the claw portion and sheet feeding pallet of slide unit is released
The cross section view of state.
Figure 15 is to show the perspective view of state of the back edge control positioning parts in first position.
Figure 16 is to show the perspective view for the state that sheet feeding pallet is positioned in closed position.
Figure 17 A is to show the perspective view of sheet feeding device according to the second embodiment.
Figure 17 B is to show the enlarged plan view of sheet feeding device.
Figure 18 A is to show the perspective view of state of the back edge control positioning parts in the second position.
Figure 18 B is the cross section view of section A18-A18, shows shape of the back edge control positioning parts in the second position
State.
Figure 19 A is to show the perspective view for the state that back edge control component moves on slide unit.
Figure 19 B is to show the plan view for the state that back edge control component moves on slide unit.
Figure 20 is to show the perspective view of state of the back edge control positioning parts in the 4th position.
Specific embodiment
<first embodiment>
(overall structure)
Firstly, the first embodiment of the present invention will be described.Printing as image forming apparatus according to first embodiment
Machine 100 is the laser beam printer using electrophotographic system.As shown in figs. 1 and 2, printer 100 includes being configured to feed
The sheet feeding device 102 of sheet material and be configured to from the sheet material that sheet feeding device 102 is fed formed image image
Form part 101A.
Image forming portion 101A uses the known technology for forming image on sheet material by electrophotographic system.Specifically
It says, firstly, photosensitive drums of the image forming portion 101A and laser beam irradiated from laser scanner unit in handle box
Upper formation electrostatic latent image, and electrostatic latent image is visualized as by toner image by developing cell.Next, image forming part
Divide 101A that toner image is transferred to from the sheet material that sheet feeding device 102 is fed, and later will by fixation unit
In toner image to sheet material, image is formed on sheet material accordingly.
Sheet feeding device 102 includes: the bottom plate 12 being arranged on the printer main body 101 as main part, construction
The feed roller 20 of part is fed and relative to printer main body 101 at feeding the sheet material S being placed on bottom plate 12 and being used as
The sheet feeding pallet 11 of openable/closable state support.12 support sheet S of bottom plate as support section gives in sheet material
The downstream side on direction is sent, the sheet feeding pallet 11 as pivoting portions is capable of the upstream side of support sheet S.As described below,
Slide unit 15 as slipper is slidably supported on sheet feeding pallet 11, sheet feeding pallet 11 and sliding part
Part 15 constitutes upstream sheet support section 104 together.Upstream sheet support section 104 is set up in sheet feeding side in bottom plate
12 upstream.
It is formed on bottom plate 12 along the leader 12a that the sheet width direction orthogonal with sheet feeding direction extends,
And a counter-lateral quadrents control plate 13 and 13 is movably supported on leader 12a along sheet width direction.Side control
The control of plate 13 and 13 is supported on the position of the marginal portion of sheet material S on sheet width direction on bottom plate 12.In addition, being configured to
The leading edge control surface 12b of the leading edge (downstream end position i.e. on sheet feeding direction) of control sheet material S is formed in bottom plate
On 12.
Sheet feeding pallet 11 is constructed to be permeable in the open position (with reference to Fig. 1) as first position and as second
It is pivoted between the closed position (with reference to Figure 16) set around the pivotal axis 11g as fulcrum, and fixed in sheet feeding pallet
In the state of closed position, sheet feeding pallet is used as the side wall of printer main body 101.Back edge control component 14 passes through
Slide unit 15 on sheet feeding pallet 11 and movably supported on sheet feeding direction, as described below.
In order to form image on sheet material S, sheet feeding pallet 11 is switched to open position from closed position by user, and
And open the sheet material memory space 103 for wherein storing sheet material in printer main body 101.Then, sheet material S is inserted into piece by user
In material memory space 103, and sheet material S is placed on bottom plate 12 and sheet feeding pallet 11, will pass through side control plate 13
With the position of 13, leading edge control surface 12b and back edge control component 14 and control sheet material S.As a result, when sheet material is by feed roller
When 20 feeding, sheet material S will not deviate, and can steadily feed sheet material, skew feeding or card without causing sheet material
Firmly.
(structure of the operation about back edge control component)
Next, will be described in detail the knot of the operation about the back edge control component 14 for being used as the second control part
Structure.As shown in fig. 3, sheet feeding pallet 11 includes a pair of of the leader for being configured to slidingly support slide unit 15
11b and 11b and abutment surface 11c as the first control part, downstream of the slide unit 15 on sheet feeding direction
15c (referring to Fig. 4 A) is against the abutment surface.The flank 11h of trellis be formed in sheet feeding pallet 11 in addition to smooth surface
In region except 11k (motion track that the smooth surface is used as slide unit 15), to reduce the friction to sheet material S
Power, and improve the rigidity of sheet feeding pallet 11.
The flank 11a and 11d projected upwards in the state that sheet feeding pallet 11 is positioned in closed position is formed in
On the smooth surface 11k of sheet feeding pallet 11.Hole 11e and 11f are respectively formed at this to leader 11b and 11b in sheet material
At symmetric position in width direction, as shown in Figure 3A and 3B.
As shown in Figure 4A and 4B, it is formed on slide unit 15 and is configured to the abutment surface against sheet feeding pallet 11
The downstream 15c of 11c, it is configured to the hole 11e and 11f of sheet feeding pallet 11 the hook 15f and 15f engaged and as one
To the leader 15g and 15g of the second guiding piece.Hook 15f is elongated in shape, and is constructed to be permeable to bullet on sheet width direction
Deform to property.
In addition, forming hole 15d and 15e, abutment surface 15h and 15i and claw portion 15a on slide unit 15.It abuts
Surface 15h is arranged on the bottom surface of slide unit 15, and is configured to be used as the first stop on sheet feeding pallet 11
The flank 11d of part is engaged.Claw portion 15a as bonding part and elastomeric element is formed as elongated in shape, and is configured to
Sheet width is resiliently deformed on direction, and including inclined surface 15a1 and downward projection of protrusion 15b.
As shown in Figure 5A and 5B, back edge control component 14 includes bonding part 14e and 14e and is grasped by user
Handle portion 114.By with the bonding part 14e and 14e that leader 15g and 15g are engaged on slide unit 15,
Back edge control component 14 is movably supported on sheet feeding direction relative to slide unit 15.Leader 15g
Be formed as prominent along sheet feeding direction with 15g, locally to interfere with the top of bonding part 14e and 14e, and after
Edge control component 14, which is maintained, to be prevented from being upwardly separated from from slide unit 15.As shown in fig. 1, bottom plate 12 is in sheet feeding direction
On to have rectangular slits 12f, notch 12f include abutment surface 12d and the guidance as a pair of first guiding piece for upstream side
Part 12e and 12e.The bonding part 14e and 14e of back edge control component 14 and the leader 12e and 12e of bottom plate 12 connect
It closes, and is movably guided on sheet feeding direction.
As shown in Figure 5A and 5B, back edge control component 14 has claw portion 14d and from lower edge portion along piece
The flank 14b that material feeding direction downstream extends.Rib is formed in along the inclined inclined surface 14a and 14f in sheet width direction
At the head end and base portion of portion 14b, and it is used as towards the engaging claw 114d of the downward projection of protrusion of slide unit 15 and is formed
At the head end of claw portion 14d.
(operation of back edge control component)
Next, will be described in detail the operation of back edge control component 14.In the following description, it is right that this will only be described
Leader 11b, this to leader 12e, this to leader 15g, device to hole 11e, device to hole 11f, this is to bonding part
14e and this to one in hook 15f, and will not be described again another.
As shown in Fig. 6 A to 6D, back edge control component 14 is operated, so that back edge control component 14 is in sheet feeding
Direction upper tube fixture has the back edge of the sheet material of the various sizes of different length, i.e., the upstream end position on sheet feeding direction
It sets.Here, sheet material corresponding with the position of back edge control component 14 shown in Fig. 6 A is known as first size sheet material, with figure
The corresponding sheet material in position of back edge control component 14 shown in 6B is known as the second sized sheets.After shown in Fig. 6 C
The corresponding sheet material in position of edge control component 14 is known as third sized sheets, with back edge control component shown in Fig. 6 D
The corresponding sheet material in 14 position is known as the 4th sized sheets.First size sheet material can be fed to sheet feeding device 102
In maximum sized sheet material, and the 4th sized sheets are the minimum dimensions that can be fed into sheet feeding device 102
Sheet material.
The position of the back edge of the control first size sheet material of back edge control component 14 is known as first position, back edge pipe
The position of the back edge of the second sized sheets of control of component 14 processed is known as the second position.The control of back edge control component 14
The position of the back edge of three sized sheets is known as the third place, the back of the 4th sized sheets of control of back edge control component 14
The position of edge is known as the 4th position.
Firstly, being used to making back edge control component 14 to be moved to from first position the operation of the 4th position description.Such as figure
Shown in 7A and 7B, in the state that back edge control component 14 is positioned in first position, the back edge of bonding part 14e is supported
Control is able to by the abutment surface 15i of slide unit 15, and along the movement of sheet feeding direction upstream.Back edge control
The engaging claw 114d of component 14 is engaged with minim gap with the hole 15d of slide unit 15, and with clearance control back edge control
Component 14 is mobile relative to slide unit 15.
As shown in fig. 7c, the hook 15f of slide unit 15 is engaged with the hole 11f on sheet feeding pallet 11, and is abutted
Surface 15h is engaged with several millimeters of gap with the flank 11d of sheet feeding pallet 11.Thus, even if slide unit 15 is from Fig. 7 C
Shown in position along sheet feeding direction downstream further up, the abutment surface 15h of slide unit 15 is against flank
11d, and slide unit 15 and sheet feeding pallet 11 is prevented to be detached from.That is, slide unit 15 is located in positioned at piece by flank 11d
Material is fed in the first sliding position of the upstream end in direction.As described above, being given with clearance control slide unit 15 relative to sheet material
Send pallet 11 mobile.
As seen in fig. 8 c, back edge control component 14 is made to be moved to the second position from first position if user attempts,
Then claw portion 14d is against the hole 15d of slide unit 15, and back edge control component 14 and slide unit 15 are integrally and along piece
Material feeds the downward downstream in direction.Then, the hook 15f of slide unit 15 is elastically deformed and detached from the hole on sheet feeding pallet 11
11f, and as shown in Figure 8A and 8B, the claw portion 15a of slide unit 15 is used as second on sheet feeding pallet 11
The flank 11a of retainer.That is, slide unit 15 is located in the second cunning at the downstream in sheet feeding direction by flank 11a
In dynamic position.
Then, the hole 11e as position portion on the hook 15f the joining sheet material feeding pallet 11 of slide unit 15.For example,
Back edge control component 14 the back edge position of control A4 sized sheets, the control legal size in first position in this position
It the back edge position of the back edge position of sheet material, in the second position control letter size sheet material and is managed in the 4th position
The back edge position of the sized sheets that print postcards or irregular size sheet material.
If user makes back edge control component 14, the position shown in Fig. 8 A is vacillated downwards along sheet feeding direction
Dynamic, then as shown in Fig. 9 A to 9C, the claw portion 14d of back edge control component 14 is removed from the hole 15d of slide unit 15.So
Afterwards, back edge control component 14 is along downward one preset distance of downstream in sheet feeding direction, and back edge control component 14
Be used as release part inclined surface 14a against slide unit 15 claw portion 15a.
In this state, as shown in Figure 10 A to 10C, if user makes back edge control component 14 along sheet feeding
The further downward downstream in direction, then inclined surface 14a is pressed by claw portion 15a, and claw portion 15a with sheet feeding side
It is moved on the direction of the arrow W of intersection.Thus, the protrusion 15b of claw portion 15a is disengaged from flank 11a, and after making
Edge control component 14 can be along the downward downstream in sheet feeding direction.Then, the claw portion 14d of back edge control component 14
(or engaging claw 114d) is engaged with minim gap with the hole 15e as bonded part of slide unit 15.As a result, after control
Edge control component 14 is mobile relative to slide unit 15, and the claw portion 15a of slide unit 15 is by back edge control component
14 inclined surface 14a is maintained in the state of compression.
In this state, if user makes back edge control component 14 along the downward downstream in sheet feeding direction, after
Edge control component 14 and slide unit 15 integrally move, and the hook 15f of slide unit 15 and sheet feeding pallet 11
Hole 11e separation.Then, abutment surface 11c of the downstream 15c of slide unit 15 against sheet feeding pallet 11.Control as a result,
Slide unit 15 is relative to sheet feeding pallet 11 along the downward downstream in sheet feeding direction.At this point, back edge control component
14 are positioned in the second position.According to the present embodiment, abutment surface 11c is formed in sheet feeding pallet 11 in sheet feeding direction
On downstream end, but arrangement is not limited to the example.In other words, abutment surface 11c can be arranged in sheet feeding support
Any position on disk 11, if abutment surface 11c against slide unit 15 so that the downstream 15c of slide unit 15 not
It is mobile on bottom plate 12.That is, the downstream 15c of slide unit 15 is not be overlapped with bottom plate 12 in the vertical direction.
Frictional force between the claw portion 14d of back edge control component 14 and the hole 15d and 15e of slide unit 15 is designed
At the frictional force between the hole 11e and 11f of the hook 15f and sheet feeding pallet 11 that are greater than slide unit 15.
As shown in Figure 11 A to 11C, if user attempt to make back edge control component 14 from the second position along sheet material to
Direction further downward downstream is sent, then inclined surface 14a and flank 14b pushes the claw portion 15a of slide unit 15, but simultaneously
Only back edge control component 14 is mobile.Then, as shown in figure 12a, back edge control component 14 is moved to slide unit 15
Downstream in glide direction, and the component of back edge control at this time 14 is located in the third place.It can also be in sliding part
Such hole is formed on part 15, in the state that back edge control component 14 is positioned in the third place, claw portion 14d can be with
The hole engagement.
In the state that back edge control component 14 is positioned in the third place, the flank 14b of back edge control component 14
It is separated with the claw portion 15a of slide unit 15, and claw portion 15a returns back to free state.At this point, such as institute in Figure 12 B and 12C
Show, the flank 11a of sheet feeding pallet 11 is on sheet feeding direction by the protrusion 15b and base edge of claw portion 15a
Part clamps.Thus, it is mobile relative to sheet feeding pallet 11 with clearance control slide unit 15.
As shown in Figure 13, make back edge control component 14 along sheet feeding direction from the third place if user attempts
Further downward downstream, then the bonding part 14e of back edge control component 14 is moved to from the leader 15g of slide unit 15
The leader 12e of bottom plate 12.That is, leader 12e and 15g form continuous leader 30, the continuous leader is used
Make the leader being continuously formed across bottom plate 12 and upstream sheet support section 104.Continuous leader 30 is in bottom plate 12
Along the movably guided back edge control component 14 in sheet feeding direction between upstream sheet support section 104.Then, even
The continuous movement of 30 control back edge control component 14 of leader on sheet width direction.
Back edge control component 14 by bottom plate 12 leader 12e guidance and along sheet feeding direction downstream
In the state of movement, as shown in Figure 13 A and 13B, the front acies of the bonding part 14e of back edge control component 14 is the bottom of against
The abutment surface 12d of plate 12.At this point, back edge control component 14 is located in the 4th position, the 4th position control can be with
By the back edge for the sheet material with minimum dimension that sheet feeding device 102 is fed.In addition, as previously described, because slide unit
15 is mobile relative to sheet feeding pallet 11 by control, therefore the immovable slide unit 15 of user.
Next, being used to making back edge control component 14 to be moved to from the 4th position the operation of first position description.Afterwards
The basic operation of edge control component 14, which is similar to, refers to operation described in Fig. 6 A to 13B, but the claw portion 15a of slide unit
The operation removed from the flank 11a of sheet feeding pallet 11 is different from aforesaid operations.Thus, by main description slide unit 15
The operation that claw portion 15a is removed from the flank 11a of sheet feeding pallet 11, and omit and similar description described previously.
In user attempt that back edge control component 14 is made to be moved to the third place from the 4th position and then is moved to second
In the state of setting, the inclined surface 14f on the flank 14b of back edge control component 14 is formed in against the claw of slide unit 15
Divide 15a.In this state, as shown in fig. 11C, if back edge control component 14 is vacillated upwards along sheet feeding direction
It is dynamic, then in the state that flank 14b deforms claw portion 15a on sheet width direction, back edge control component 14
Engaging claw 114d is engaged with the hole 15e of slide unit 15.
If back edge control component 14 is along sheet feeding direction downstream further up, back edge control component
14 engaging claw 114d is against the marginal portion of hole 15e, and back edge control component 14 is integrally moved with slide unit 15.
As shown in Figure 14 A to 14C, if the protrusion 15b being formed on the claw portion 15a of slide unit 15 has moved through rib
Portion 11a, then the hook 15f of slide unit 15 is engaged with the hole 11e of sheet feeding pallet 11.
If user makes back edge control component 14 along sheet feeding direction downstream further up, back edge pipe
The engaging claw 114d of component 14 processed from hole 15e remove, and only make back edge control component 14 along sheet feeding direction to
Upper downstream.Then, as shown in Figure 15, the back edge of the bonding part 14e of back edge control component 14 is against slide unit
15 abutment surface 15i, and claw portion 14d is engaged with hole 15d.
If user makes back edge control component 14 along sheet feeding direction downstream further up, back edge pipe
Component 14 processed is integrally moved with slide unit 15, and the hole 11e of the hook 15f of slide unit 15 and sheet feeding pallet 11 is de-
From.Then, as shown in fig. 7c, the hook 15f of slide unit 15 is engaged with the hole 11f of sheet feeding pallet 11, and back edge
Control component 14 is located in first position.As previously mentioned, if make back edge control component 14 along sheet feeding direction into
The upward downstream of one step, then the abutment surface 15h of slide unit 15 and is slided against the flank 11d of sheet feeding pallet 11
Component 15 is mobile relative to sheet feeding pallet 11 by control.
As described above, back edge control component 14 can be moved to the 4th position from first position, the first position exists
The upstream of the back edge of sheet feeding pallet 11 is located on sheet feeding direction, the 4th position is on sheet feeding direction
Downstream is located in compared with the leading edge of sheet feeding pallet 11.Thus, can definitely control have by simple structure
The back edge of the sheet material of various sizes, and sheet material can be steadily fed, without causing the skew feeding of sheet material or blocking.
For example, be even not located in the small size sheet material on sheet feeding pallet 11 in the upstream edge of sheet material, it can also be definitely
The position of the upstream end of control sheet material.In addition, slide unit 15 can be by operation back edge control component 14 with interlocking side
Formula is mobile, without removing back edge control component 14 from sheet feeding pallet 11, so as to improve operability.
In addition, the downstream 15c of slide unit 15 and the abutment surface 11c of sheet feeding pallet 11 abut against each other, thus
Prevent the downstream 15c of slide unit 15 from moving above bottom plate 12.Thus, slide unit 15 will not cross over bottom plate 12 and sheet material
It feeds pallet 11 to be arranged, and even if is also possible to prevent damage slide unit 15 when sheet feeding pallet 11 pivots.
In addition, can't reach the small size sheet material of sheet feeding pallet 11 (for example, postcard size piece in feeding back edge
Material) in the state of, as shown in Figure 16, piece can be fed with state that sheet feeding pallet 11 is positioned in closed position
Material.In addition, in the state that entire back edge control component 14 is supported by the leader 12e of bottom plate 12, sheet feeding pallet
11 can be moved to closed position.As described above, the state closed and corresponding to sheets of sizes in sheet feeding pallet 11
It is lower to use sheet feeding device 102, gimp or transmitted noise during sheet material can be stopped to transmit, and can reduce and make an uproar
Sound.In addition, by using the device that wherein sheet feeding pallet 11 is closed dress can be formed using image with more compact state
It sets.
(second embodiment)
Next, second embodiment of the present invention will be described.Second embodiment uses such structure, wherein according to first
The claw portion 15a that embodiment is formed on slide unit 15 replaces with bar 26.Thus, the structure similar with first embodiment or
It is being not shown in the figure or is indicating identical appended drawing reference.
As shown in Figure 17 B, the slide unit 25 as slipper is pivotally propped up by pivotal axis 25a
Support is used as the bar 26 of bonding part and pivotable member, and bar 26 is by spring (not shown) bias counterclockwise.Such as figure
Shown in 17B and 19B, bar 26 includes first end section 26a and second end section 26b, and the first end section can be against rear
The flank 24b of the edge control component 24 and retainer 25j being formed on slide unit 25, the second end section can be supported
By the flank 21a of sheet feeding pallet 21.First end section 26a and second end section 26b are mutually arranged at opposite sides,
The centrally disposed place pivoting axis 25a.
(operation of back edge control component)
Back edge control component 24 as the second control part can move between first position and the 4th position, class
It is similar to first embodiment.Hereinafter, it will only describe the part different from the structure of first embodiment in detail, and omit pair
The description of the structure similar with first embodiment.
As shown in figs. 17 a and 17b, in the state that back edge control component 24 is positioned in first position, joint portion
Divide 14e against the abutment surface 15i of slide unit 25, and claw portion 14d is engaged with hole 15e.In this state, bar 26
First end section 26a against back edge control component 24 flank 24b, and the first end section and slide unit 25 only
Moving part 25j separation.
If user attempts to make back edge control component 24 along the downward downstream in sheet feeding direction, back edge control
The claw portion 14d of component 24 is against the marginal portion of hole 15e, and back edge control component 24 is integrally moved with slide unit 15
It is dynamic.Then, as shown in figure 18, the downstream 15c of slide unit 25 is against the sheet feeding pallet 21 for being used as pivoting portions
Abutment surface 11c.At this point, back edge control component 24 is positioned in the second position.
If user attempts to make back edge control component 24 along the further downward downstream in sheet feeding direction, back
The claw portion 14d and hole 15e of edge control component 24 are detached from, and as shown in figure 19, and only back edge control component 24 moves
It is dynamic.Then, as shown in fig. 19b, the first end section 26a of bar 26 is separated with the flank 24b of back edge control component 24, and
Bar 26 is pivoted counterclockwise by spring (not shown).The first end section 26a of bar 26 stops and is in against cunning
In the state of the retainer 25j of dynamic component 25, and at this point, bar 26 second end section 26b on sheet feeding direction with piece
The flank 21a that material feeds pallet 21 is opposite.As a result, by flank 21a control slide unit 25 on sheet feeding direction to
The movement of upstream.
Then, back edge control component 24 passes through the third place, and is transferred to from the leader 15g of slide unit 15
The leader 12e of bottom plate 12, and as shown in Figure 20, back edge control component 24 is moved to the 4th position.After making
Control component in edge is along sheet feeding direction from the 4th position towards the upward downstream in first position, back edge control component 24
Flank 24b pressing lever 26 first end section 26a, and the engagement between second end section 26b and flank 21a is released.
As described above, slide unit 25 can be locked to sheet feeding pallet 21 and from sheet feeding pallet by bar 26
Slide unit is discharged, and back edge control component 24 continuously can be moved to the from first position by simple structure
Four positions.Thus, even if the sheet material (such as postcard sized sheets) that back edge can't reach sheet feeding pallet 11 is placed on bottom
On plate 12, can also definitely control sheet material back edge position, without by back edge control component 14 from sheet feeding support
It is removed in disk 11.
Since slide unit 25 and bar 26 are formed by isolated component, slide unit 25 and bar 26 can be by different
Material is formed, and can be with the freedom degree of Curve guide impeller.For example, slide unit 25 can be made of the material with high rigidity with
Support sheet, and bar 26 can be made of the material with high slidability, so that bar can pivot.
In a second embodiment, bar 26 is arranged to user as it can be seen that still bar 26 can be set in slide unit 25
On side, so that bar 26 does not contact sheet material.Thus, it is possible to reduce the incidence of transmission fault, and appearance can be improved.
Above-described embodiment is described by reference to the printer 100 using electrophotographic system, but the present invention is unlimited
In the example.For example, present invention could apply to the image forming apparatus using ink-jet system, the liquid ink in ink-jet system
It is discharged by nozzle, to form image on sheet material.In addition, back edge control component 14 is not limited to control in sheet feeding side
Upward upstream end position.In addition, back edge control component 14 can be with the position at the edge of control sheet material on sheet width direction
It sets.
Although describing the present invention by reference to exemplary embodiment, but it is to be understood that the present invention is not limited to disclosed
Exemplary embodiment.The range of following claims should give broadest explanation, modified to cover all these,
Equivalent structure and function.
Claims (13)
1. a kind of sheet feeding device, comprising:
Main part, the main part include being configured to the support section of support sheet and being configured to feed be supported on
The feeding part of sheet material on support part point；
Pivoting portions, the pivoting portions are upwardly arranged at the upstream of support section in sheet feeding side, and relative to main body
Part is pivotally supported between first position and the second position, and pivoting portions are configured in first position and support section
Support sheet together；
Slipper, the slipper are slidably supported on pivoting portions；
First control part, first control part be configured to against slipper and control slipper along sheet material to
Send direction downward downstream；
Second control part, second control part are configured to the position for the sheet material that control is supported on support section；And
The leader formed across support section and slipper, the leader are configured to exist along sheet feeding direction
The second control part is guided between support section and slipper,
Wherein, in the case where the second control part is formed on the guidance of the leader on support section, the second control part
It is supported on support section.
2. sheet feeding device according to claim 1, which is characterized in that the first control part is configured to control sliding part
The movement divided, so that downstream of the slipper on sheet feeding direction be not be overlapped with support section in the vertical direction.
3. sheet feeding device according to claim 1, which is characterized in that leader includes being formed on support section
The first guiding piece and the second guiding piece for being formed on slipper, and
In the state that slipper is against the first control part, the second control part can be guided in the first guiding piece and second
It is moved between part.
4. sheet feeding device according to claim 2, which is characterized in that the second control part is configured to control and is supported on
The position of upstream end of the sheet material on sheet feeding direction on support section, and
First control part is formed in the downstream end of pivoting portions on sheet feeding direction, and the first control part constructs
At against the downstream of slipper.
5. sheet feeding device according to any one of claims 1 to 4, which is characterized in that pivoting portions include structure
It causes the first retainer being located in slipper in the first sliding position and is configured to slipper being located in second
The second retainer in sliding position, second sliding position are located under the first sliding position on sheet feeding direction
Trip.
6. sheet feeding device according to claim 5, which is characterized in that slipper includes being configured to and the second stop
The bonding part of part engagement, and
Second control part includes release part, and the release part is configured so as to the second control part in sheet feeding direction
Upper movement and press bonding part, in the state that slipper is positioned in the second sliding position, the second control part release
Engagement between bonding part and the second retainer.
7. sheet feeding device according to claim 6, which is characterized in that bonding part is and slipper one landform
At elastomeric element, and bonding part is configured to intersect in the state of being pressed by release part along with sheet feeding direction
Direction be resiliently deformed.
8. sheet feeding device according to claim 6, which is characterized in that bonding part is to be pivotally supported at sliding
Pivotable member on part, and bonding part is configured to pivot and discharge in the state of being pressed by release part to stop with second
The engagement of moving part.
9. sheet feeding device according to claim 6, which is characterized in that the second control part includes being configured to towards sliding
Dynamic part protrusion outstanding, and
Slipper includes bonded part, the bonded part be configured to release part released bonding part with
It is engaged in the state of engagement between second retainer with the protrusion of the second control part.
10. sheet feeding device according to claim 9, which is characterized in that engaged in protrusion with bonded part
And slipper, not in the state of the first retainer or the second retainer, slipper and the second control part are configured to
Integrally move.
11. sheet feeding device according to claim 3, which is characterized in that propped up in the entire part of the second control part
In the state of on the first guiding piece, pivoting portions are configured to be switched to the second position for support.
12. sheet feeding device according to claim 6, which is characterized in that pivoting portions include position portion, described fixed
Bit position is configured to that slipper is located in the second sliding position in the state that the second retainer is engaged with bonding part.
13. a kind of image forming apparatus, comprising:
Sheet feeding device according to claim 1；And
Image forming portion, described image form part and form image on the sheet material fed by sheet feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911033915.1A CN110745591B (en) | 2016-06-03 | 2017-06-02 | Sheet feeding apparatus and image forming apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-112009 | 2016-06-03 | ||
| JP2016112009A JP6800619B2 (en) | 2016-06-03 | 2016-06-03 | Sheet feeding device and image forming device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911033915.1A Division CN110745591B (en) | 2016-06-03 | 2017-06-02 | Sheet feeding apparatus and image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107458896A CN107458896A (en) | 2017-12-12 |
| CN107458896B true CN107458896B (en) | 2019-11-29 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710406373.2A Active CN107458896B (en) | 2016-06-03 | 2017-06-02 | Sheet feeding device and image forming apparatus |
| CN201911033915.1A Active CN110745591B (en) | 2016-06-03 | 2017-06-02 | Sheet feeding apparatus and image forming apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911033915.1A Active CN110745591B (en) | 2016-06-03 | 2017-06-02 | Sheet feeding apparatus and image forming apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10053310B2 (en) |
| JP (1) | JP6800619B2 (en) |
| CN (2) | CN107458896B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11465870B2 (en) | 2017-10-18 | 2022-10-11 | John Latsko | System for a printer extension kit |
| US10717623B2 (en) * | 2017-10-18 | 2020-07-21 | John Latsko | Printer tray extension kit |
| US10752460B2 (en) * | 2017-10-18 | 2020-08-25 | John Latsko | System for a printer extension kit |
| JP7277282B2 (en) | 2019-06-24 | 2023-05-18 | キヤノン株式会社 | Sheet storage device and image forming device |
| EP3924190A4 (en) * | 2019-06-27 | 2022-10-05 | Hewlett-Packard Development Company, L.P. | Media trays and media stops |
| JP7439491B2 (en) * | 2019-12-18 | 2024-02-28 | 京セラドキュメントソリューションズ株式会社 | image forming device |
| JP2022049167A (en) * | 2020-09-16 | 2022-03-29 | キヤノン株式会社 | Sheet feeding device and image forming device |
| JP2022141026A (en) * | 2021-03-15 | 2022-09-29 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
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| JPH0834527A (en) * | 1994-07-26 | 1996-02-06 | Casio Electron Mfg Co Ltd | Paper feeder |
| JPH08301461A (en) * | 1995-05-01 | 1996-11-19 | Brother Ind Ltd | Paper feed cassette device |
| JP3646247B2 (en) * | 1999-09-20 | 2005-05-11 | 京セラ株式会社 | Paper cassette |
| KR100485807B1 (en) * | 2002-06-05 | 2005-04-28 | 삼성전자주식회사 | loading size-varied paper-feeding cassette |
| JP2004264840A (en) | 2003-02-10 | 2004-09-24 | Canon Inc | Image forming apparatus |
| CN100348425C (en) * | 2004-01-20 | 2007-11-14 | 三星电子株式会社 | Media cassette for printing apparatus |
| KR100565084B1 (en) * | 2004-10-12 | 2006-03-30 | 삼성전자주식회사 | Manual paper feeder device and the image-forming apparatus adopting the same |
| JP4100395B2 (en) * | 2004-11-01 | 2008-06-11 | 船井電機株式会社 | Laser beam printer and printer |
| KR100728003B1 (en) * | 2005-10-19 | 2007-06-14 | 삼성전자주식회사 | Expandable and contractible Paper cassette |
| KR100720723B1 (en) * | 2005-10-20 | 2007-05-22 | 삼성전자주식회사 | Versatile Device of Feeding Print Sheet for Image Forming Apparatus |
| JP2009155006A (en) | 2007-12-25 | 2009-07-16 | Canon Inc | Image forming device |
| JP5202109B2 (en) * | 2008-05-29 | 2013-06-05 | キヤノン株式会社 | Sheet feeding apparatus and image forming apparatus |
| JP5219720B2 (en) | 2008-10-01 | 2013-06-26 | キヤノン株式会社 | Sheet feeding apparatus and image forming apparatus |
| JP5477580B2 (en) | 2010-04-06 | 2014-04-23 | 富士ゼロックス株式会社 | Paper feeding device and image forming apparatus |
| JP5948909B2 (en) * | 2012-01-31 | 2016-07-06 | ブラザー工業株式会社 | Image forming apparatus |
| JP6056334B2 (en) * | 2012-09-28 | 2017-01-11 | ブラザー工業株式会社 | Image forming apparatus |
| JP6142640B2 (en) * | 2013-04-24 | 2017-06-07 | セイコーエプソン株式会社 | Medium storage cassette and recording device |
| JP2015143148A (en) | 2014-01-31 | 2015-08-06 | ブラザー工業株式会社 | Sheet feeder |
| JP6460311B2 (en) * | 2014-09-25 | 2019-01-30 | ブラザー工業株式会社 | Image recording device |
| JP6529284B2 (en) | 2015-03-05 | 2019-06-12 | キヤノン株式会社 | Sheet conveying apparatus and image forming apparatus |
| JP6387881B2 (en) * | 2015-03-31 | 2018-09-12 | ブラザー工業株式会社 | Sheet tray, conveying apparatus, and image recording apparatus |
-
2016
- 2016-06-03 JP JP2016112009A patent/JP6800619B2/en active Active
-
2017
- 2017-05-31 US US15/609,269 patent/US10053310B2/en active Active
- 2017-06-02 CN CN201710406373.2A patent/CN107458896B/en active Active
- 2017-06-02 CN CN201911033915.1A patent/CN110745591B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107458896A (en) | 2017-12-12 |
| JP2017218247A (en) | 2017-12-14 |
| CN110745591B (en) | 2022-01-18 |
| US20170349389A1 (en) | 2017-12-07 |
| US10053310B2 (en) | 2018-08-21 |
| JP6800619B2 (en) | 2020-12-16 |
| CN110745591A (en) | 2020-02-04 |
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